16.

5. Once people realized that the Black Death

was spreading across Europe, they began to

People began to lose faith.

Explanation:

The Catholic Church, during the medieval period, considered to be powerful and played an influential role in society. As the Black Death spread in Europe in 1347, the Church fought to cope with the plague's outcomes, and its reputation suffered because of deaths. The Black Death led to the dissolution in the trust and faith of the Christian believers towards the Church teaching.